Support Announcements
(non-US) DIR-2055 :: Rev. A1 :: F/W v1.11B02 :: ZDI-CAN-12683 & ZDI-CAN-12686 :: HNAP Vulnerabilities


On April 26, 2021, Trend Micro's Zero Day Initiative identified two vulnerabilities accusing the DIR-2055 of security issues in it's HNAP implementation.These ZDI vulnerabilities were confirmed and a patch was issued too close the reported issues.  Please find the beta/hotfix release below.

3rd Party Report information


          - Report provided:


                    zdi-disclosures _at_ trendmicro _dot_ com

          - Reference :


                    3rd Party Public Disclosure :: Pending CVE-Id Disclosures


                    ZDI-CAN-12683: D-Link DIR-2055 HNAP strncmp Incorrect Comparison Authentication Bypass Vulnerability


                    ZDI-CAN-12686: D-Link DIR-2055 HNAP PrivateLogin Incorrect Implementation of Authentication Algorithm Authentication Bypass Vulnerability


 Affected Models


Model Hardware Revision Affected FW Fixed FW Recommendation  Last Updated
DIR-2055 All Ax Hardware Revisions v1.11B02 & Below v1.11B03 Hotfix

  Please Download Patch and Update Device



Regarding Security patch for your D-Link Devices
Firmware updates address the security vulnerabilities in affected D-Link devices. D-Link will update this continually and we strongly recommend all users to install the relevant updates.
Please note that this is a device beta software, beta firmware, or hot-fix release which is still undergoing final testing before its official release. The beta software, beta firmware, or hot-fix is provided on an “as is” and “as available” basis and the user assumes all risk and liability for use thereof. D-Link does not provide any warranties, whether express or implied, as to the suitability or usability of the beta firmware. D-Link will not be liable for any loss, whether such loss is direct, indirect, special or consequential, suffered by any party as a result of their use of the beta firmware.
As there are different hardware revisions on our products, please check this on your device before downloading the correct corresponding firmware update. The hardware revision information can usually be found on the product label on the underside of the product next to the serial number. Alternatively, they can also be found on the device web configuration.